Since when do you use a helicopter instead of a crane in building construction? When you have a building with a roof that is 11 acres wide. In one hour, 14 minutes on the morning of Aug. 26, this helicopter delivered 28 new air conditioning and exhaust units to the top of Viega's 439,000-sq.ft. manufacturing and logistics facility under construction in McPherson, Kan. Viega's new plant will house production for PEX tubing and PEX manifold plumbing systems. Viega is headquartered in Wichita, Kan. Additional information is available at www.viega.com.